402165016 has 64 divisors (see below), whose sum is σ = 841052160. Its totient is φ = 178752000.

The previous prime is 402164981. The next prime is 402165017. The reversal of 402165016 is 610561204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402165017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1193200 + ... + 1193536.

It is an arithmetic number, because the mean of its divisors is an integer number (13141440).

Almost surely, 2^402165016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402165016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420526080).

402165016 is an abundant number, since it is smaller than the sum of its proper divisors (438887144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402165016 is a wasteful number, since it uses less digits than its factorization.

402165016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 402165016 is about 20054.0523585633. The cubic root of 402165016 is about 738.1332397510.

The spelling of 402165016 in words is "four hundred two million, one hundred sixty-five thousand, sixteen".